Taken from the Green car website, I have just read about Citroen/Peugeots successful emission control device, which has now proven to reduce Nitrous oxide by 90% to levels similar to a petrol powered car. Full story:

PSA Peugeot-CitroŽn reports that initial tests show that the BlueHDi after-treatment system, used on the company's latest generation of efficient diesel engines is compliant with Euro 6 regulations and are aligned with homologated data.

The tests, which were organised by the French Ministry of Ecology, Sustainable Development and Energy on the Peugeot 208 and Peugeot 508 models, confirm the effectiveness of the after-treatment system in which Selective Catalytic Reduction (SCR) technology is positioned upstream of the particulate filter to eliminate up to 90% of the nitrogen oxides (NOx) released by diesel engines and bring NOx emissions down to levels near those of petrol engines.

BlueHDi involves a three stage cleansing process which specifically targets diesel emissions. In stage one, the oxidation catalytic converter eliminates the hydrocarbons (HCs), transforming them into water (H2O) and carbon dioxide (CO2); stage two sees the SCR transform the nitrogen oxides (NOx) into water and nitrogen (N2), the main constituent of air (78%), with the addition of AdBlueģ (a mixture of urea and water); and in stage three, a particulate filter reduces the particulates by number by over 99%.

Convinced by SCR's potential, PSA Peugeot-CitroŽn developed and invested in BlueHDi for deployment in 2013, two years before mandated by regulations. The system was then gradually added as standard equipment on all Euro 6-compliant diesel models. Due to its effective use of SCR technology, the Peugeot 208 1.6 BlueHDi won Next Green Car's Supermini 2015 Award.

PSA Peugeot-CitroŽn has filed some one hundred patents for BlueHDi technology, which has undergone continuous development with a view to improving performance and cost in time for the new Euro 6.2 emissions standards in September 2017.

The company claims that the latest tests also show that diesel engines maintain their advantage of 15% lower CO2 emissions and 20% greater fuel efficiency.

In addition to diesel power units, Peugeot-CitroŽn offer line-up of high-performance petrol engines, including the 3-cylinder PureTech (2015 "International Engine of the Year"), which is recognised for its high fuel efficiency and low CO2 emissions. The Group is also currently developing its second generation of electric vehicles, as well as a new range of plug-in petrol hybrids for launch in 2019.

From the article:
Testing by a French government-led commission established after the VW scandal has also found relatively high NOx emissions from Renault models, members have said.

The French carmaker will detail the planned adjustments in March for vehicles with the latest Euro 6 generation of diesels, Bollore told reporters, and begin offering voluntary engine checks to owners four months later.

Based on current production levels, the approximate number of vehicles eligible for checks could approach 700,000, Renault said, but the total ultimately affected and brought in to dealerships is bound to be much lower.....

Renault's relatively poor record on NOx - blamed for a host of respiratory illnesses - contrasts sharply with its achievements in developing diesel and gasoline engines that achieve industry-leading levels of fuel economy, and accompanying low carbon dioxide emissions.

The EU needs to revamp their test cycles; they aren't representative of how the cars are driven in the public. Legal diesels that meet Euro 6 emit more NOx on the road. Petrol cars can also exceed their Euro 6 NOx limits on the road; just not as greatly as diesels do.

From the article, detailing not only nitrogen pollutions, but particle pollutions:
Every year, around 23,500 Britons die prematurely from inhaling NOx emissions such as nitrogen dioxide (NO2) particles, emitted by diesel engines. Another 29,000 die from inhaling sooty particulate matter, which by both diesel and petrol engines.

Litesong, don't worry about sounding like a broken record, thank God you reminded me yet again that me and me alone, in the only diesel car in Europe, who lives in the middle of nowhere is responsible for everyone dying from Cancer. I'll just have to stop at the liquor store and buy a gallon a whiskey to soften the guilt.

Too bad you're too naive to realise that despite having DOUBLE the population, Europe still has HALF the N0X emissions of the US, where the N0X emissions per capita are nearly 300% higher, and the N0X emissions from transport alone are DOUBLE that of Europe too. I understand your pain and frustration at this and the need to divert the attention away, whilst making your point as personal as possible

Litesong, don't worry about sounding like a broken record, thank God you reminded me yet again that me and me alone, in the only diesel car in Europe, who lives in the middle of nowhere is responsible for everyone dying from Cancer. I'll just have to stop at the liquor store and buy a gallon a whiskey to soften the guilt.

Too bad you're too naive to realise that despite having DOUBLE the population, Europe still has HALF the N0X emissions of the US, where the N0X emissions per capita are nearly 300% higher, and the N0X emissions from transport alone are DOUBLE that of Europe too. I understand your pain and frustration at this and the need to divert the attention away, whilst making your point as personal as possible

Anyway, back on topic...

Don't forget that the grain used in whiskey production is produced by diesel powered farm equipment, and farm equipment tends to lag behind in pollution control equipment. So the whiskey has a NOx footprint, too, as well as a carbon footprint. The still probably uses fossil fuel, too. I guess you can go with Scotch whiskey, which might still be produced using peat for fuel.

Draigflag, if Europe is doing so well, what's all the fuss about smog enveloping London and Paris due largely to NOX? What's all this talk about restricting diesels in Europe which in the past have been encouraged through tax credits and other govenment decisions? And have you noticed the impact on Volkswagon and its leadership and its shareholders, which you shrug off as a minor matter. Your approach to current events is identical to Baghdad Bob's.

And if you are comparing the US and Europe, as is your fetish, have you looked at the difference in land mass and distances traveled in the respective countries and thus energy per capita needed? No, I guess you didn't.